/*
 * Copyright 2018 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.drools.verifier.core.index.keys;

import java.util.ArrayList;
import java.util.List;

import org.drools.verifier.core.maps.KeyChangeListener;
import org.drools.verifier.core.maps.KeyDefinition;

public class UpdatableKey<T>
        extends Key {

    private List<KeyChangeListener<T>> keyChangeListeners = new ArrayList<>();

    public UpdatableKey(final KeyDefinition keyDefinition,
                        final Comparable value) {
        super(keyDefinition,
              value);
    }

    public UpdatableKey(final KeyDefinition keyDefinition,
                        final Values values) {
        super(keyDefinition,
              values);
    }

    public void update(final UpdatableKey newKey,
                       final T t) {
        for (final KeyChangeListener<T> keyChangeListener : keyChangeListeners) {
            keyChangeListener.update(this,
                                     newKey,
                                     t);
        }
    }

    public void addKeyChangeListener(final KeyChangeListener<T> keyChangeListener) {
        keyChangeListeners.add(keyChangeListener);
    }

    public void removeListener(final KeyChangeListener<T> keyChangeListener) {
        keyChangeListeners.remove(keyChangeListener);
    }
}
